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| Criterion |  Innovation Lean Startup |  Product Discovery Problem Interview |  Product Discovery Solution Interview |  Innovation Design Sprint |
|---|---|---|---|---|
Purposedifferent | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | When the picture of the problem still needs to become solid, it asks about real situations and consequences. It separates genuine suffering from mere interest in a solution. | When a solution idea is already on the table, it checks how it is understood and evaluated. It looks for resonance, objections, and missing fit early in the conversation. | When the product question is unclear and time pressure is high, the method takes a team from an open idea to a testable solution. It connects problem understanding, decision, and learning in one compact format, lowering the risk of spending a lot of energy on a mere guess. |
Complexitydifferent | Medium | Medium | Medium | High |
Timedifferent | Wochen bis Monate je Lernzyklus | 30-60 min je Interview | 30-60 min je Interview | 4-5 Tage |
Participantsdifferent | 2-8 | 5-12 Interviews | 5-10 Interviews | 5-8 |
Formatdifferent | Workshop + async | Workshop + async | Workshop + async | Workshop |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Problem Evidence, Risk Notes, Customer Segments | Solution Feedback, Objection List, Validation Notes | Prototype, Test Findings, Decision Rationale |
Tags1 shared | LeanStartupValidationMVP | DiscoveryInterviewsValidation | ValidationInterviewsPrototype | Design sprintPrototypeValidationInnovation |